Synthetic Gear Oil, an enclosed gear lubricant, is a totally synthetic hydrocarbon and ester combination, Extreme Pressure lubricant offering outstanding Extreme Pressure and anti-wear properties, as well as excellent viscosity-temperature properties, and extremely low coefficients of friction and traction. Synthetic Gear Oil is compatible with mineral oils. Grades ISO VG 220, ISO VG 320, ISO VG 460 are approved by Flender. Grade ISO VG 460 is approved by LeTourneau. Grades ISO VG 220, ISO VG 320, ISO VG 460 are approved by Bosch Rexroth. Grades ISO VG 320, ISO VG 460 are certified for Caterpillar SD4721 Part A Specification for dragline enclosed gear case lubricant.